<<Disclaimer: Verify this information before applying it to your situation.>> I have been a diagnosed celiac for 2 years and have been on a gluten-free diet ever since. I am very thin and have been unable to gain weight except for the 2 different times my doctor has put me on prednisone. I do gain weight while on prednisone, but then gradually lose it after I stop taking the prednisone. I am 5 feet 5 inches tall and weigh 86 pounds and my weight is going down. My weight usually stabilizes around 82 pounds. Is this a common problem? I'm afraid my doctor is going to try to get me to take prednisone again to help me gain weight. He thought I might have refractory sprue and did a second biopsy this spring. It showed normal villi. My other concern is that my doctor keeps calling celiac "an allergy". He is very intelligent and diagnosed me right away. I am grateful for that, but I know that celiac is not an allergy. Could someone explain the difference, so that I can explain it to him. Thanks for your help! Kathleen Shipley Beaumont, TX